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1. heart

   Muscle that pumps blood through the body

2. lungs

   Organs that take in oxygen when you breathe

3. brain

   Organ that controls the body and lets you think

4. stomach

   Organ that churns and breaks down food

5. skeleton

   All the bones of the body together

6. skull

   Bones that protect the brain

7. muscle

   Body tissue that pulls on bones to move them

8. spine

   Column of bones down the middle of your back

9. ribs

   Curved bones that protect the heart and lungs

10. esophagus

    Tube that carries food to the stomach

11. trachea

    Windpipe that carries air to the lungs

12. intestines

    Long tubes where food is digested and absorbed

13. kidneys

    Organs that clean waste out of the blood

14. nerves

    Fibers that carry messages to and from the brain

15. arteries

    Blood vessels that carry blood away from the heart

16. veins

    Blood vessels that carry blood back to the heart

17. joint

    Place where two bones meet, like the knee

18. tendon

    Tough band that connects a muscle to a bone

19. diaphragm

    Muscle under the lungs that helps you breathe

20. organ

    Body part that does a special job